Patents by Inventor Yoshitsugu Ogawa

Yoshitsugu Ogawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230067673
    Abstract: A machine tool (1) includes: a door (5) that opens and closes an opening in a shield cover (3) surrounding a machining chamber; an electromagnetic lock device (6) that includes dual-system switches that detect an open/closed state of the door (5), and that can lock the door (5) in a closed state; a door position detection unit that detects a position of the door (5); and a report unit that monitors states of the dual-system switches of the electromagnetic lock device (6) and suggests maintenance of the door (5) when the states differ from each other for a predetermined period of time and when the door position detection unit detects that the door (5) is not in a closed position.
    Type: Application
    Filed: March 1, 2021
    Publication date: March 2, 2023
    Applicant: FANUC CORPORATION
    Inventor: Yoshitsugu OGAWA
  • Patent number: 10870203
    Abstract: A machine tool control device and a production system are provided which determine an operation sequence of a robot and set numerical data required in operation, by setting the selection of an operating program of a robot, and/or setting of operations of the operating program, based on an instruction by the user from the machine tool side. A numerical control device which is connected to a robot control device for controlling a robot and controls a machine tool that is used in combination with the robot, includes: a reception unit that accepts setting information for the robot; and a sending unit for sending a parameter setting a selection of an operating program of the robot, and/or setting operations of the operating program, based on the setting information accepted by the reception unit.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: December 22, 2020
    Assignee: FANUC CORPORATION
    Inventors: Yoshihiko Tarui, Yoshitsugu Ogawa, Yoshinori Hoshino
  • Patent number: 10416650
    Abstract: Since a data acquisition condition setting unit can select a data acquisition start/end trigger, a sampling period of data, and a type of acquired data, a waveform display device, which has a function of allowing only necessary data to be acquired by allowing a plurality of data acquisition conditions to be set with respect to one data acquisition, can set these conditions from a screen of a data acquisition condition setting. When data needs to be acquired according to a plurality of different conditions, a plurality of types of necessary data acquisition conditions is set to set different data acquisition condition names. When a plurality of data acquisition conditions is set by acquiring data once, a multi-data acquisition condition setting unit can set necessary data acquisition conditions using a screen of a multi-data acquisition condition setting.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: September 17, 2019
    Assignee: FANUC CORPORATION
    Inventor: Yoshitsugu Ogawa
  • Patent number: 10317871
    Abstract: A machine tool system and an opening stop position calculating device are provided. The machine tool system includes an openable and closable door for closing an opening of a cover surrounding a machine tool. Furthermore, the machine tool system includes an opening width setting unit for setting an opening width of the door, an opening stop position calculating unit for calculating an opening stop position of the door at which a total time, which is obtained by summing a time required to move the door from a fully closed position to a position of the set opening width and a time required to move the door from an opening stop position where the door is opened and stopped to the fully closed position, is minimized, and a door control unit for controlling opening and closing of the door based on the calculated opening stop position when exchanging the workpiece.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: June 11, 2019
    Assignee: FANUC CORPORATION
    Inventor: Yoshitsugu Ogawa
  • Publication number: 20180333846
    Abstract: A machine tool control device and a production system are provided which determine an operation sequence of a robot and set numerical data required in operation, by setting the selection of an operating program of a robot, and/or setting of operations of the operating program, based on an instruction by the user from the machine tool side. A numerical control device which is connected to a robot control device for controlling a robot and controls a machine tool that is used in combination with the robot, includes: a reception unit that accepts setting information for the robot; and a sending unit for sending a parameter setting a selection of an operating program of the robot, and/or setting operations of the operating program, based on the setting information accepted by the reception unit.
    Type: Application
    Filed: April 17, 2018
    Publication date: November 22, 2018
    Inventors: Yoshihiko TARUI, Yoshitsugu OGAWA, Yoshinori HOSHINO
  • Publication number: 20170269569
    Abstract: A machine tool system and an opening stop position calculating device are provided. The machine tool system includes an openable and closable door for closing an opening of a cover surrounding a machine tool. Furthermore, the machine tool system includes an opening width setting unit for setting an opening width of the door, an opening stop position calculating unit for calculating an opening stop position of the door at which a total time, which is obtained by summing a time required to move the door from a fully closed position to a position of the set opening width and a time required to move the door from an opening stop position where the door is opened and stopped to the fully closed position, is minimized, and a door control unit for controlling opening and closing of the door based on the calculated opening stop position when exchanging the workpiece.
    Type: Application
    Filed: March 15, 2017
    Publication date: September 21, 2017
    Applicant: FANUC CORPORATION
    Inventor: Yoshitsugu Ogawa
  • Patent number: 9527176
    Abstract: A rotary table is rotated by a machining load. A drive motor tries to return the rotary table to a positioned target position, and increases output torque. When the output torque reaches upper limit torque Tmax or when output torque which is equal to or greater than permissible torque Tp continues for predetermined time ?T, a target position which is sent to a drive motor is changed, thereby promoting reduction in output torque. If the output torque becomes smaller than permissible torque Tp, the target position is changed to bring position deviation of the drive motor equal to 0, and the position deviation is swiftly returned.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: December 27, 2016
    Assignee: FANUC CORPORATION
    Inventor: Yoshitsugu Ogawa
  • Publication number: 20160299488
    Abstract: Since a data acquisition condition setting unit can select a data acquisition start/end trigger, a sampling period of data, and a type of acquired data, a waveform display device, which has a function of allowing only necessary data to be acquired by allowing a plurality of data acquisition conditions to be set with respect to one data acquisition, can set these conditions from a screen of a data acquisition condition setting. When data needs to be acquired according to a plurality of different conditions, a plurality of types of necessary data acquisition conditions is set to set different data acquisition condition names. When a plurality of data acquisition conditions is set by acquiring data once, a multi-data acquisition condition setting unit can set necessary data acquisition conditions using a screen of a multi-data acquisition condition setting.
    Type: Application
    Filed: April 7, 2016
    Publication date: October 13, 2016
    Inventor: Yoshitsugu OGAWA
  • Publication number: 20160103444
    Abstract: A controller performs tool indexing operation by controlling a tool post driving motor that drives a tool post that can house a plurality of tools and can position a desired tool to a specific position. At this time, the controller estimates an amount of movement of the tool post driving motor based on the number of a tool pot at a tool change position at the start of tool indexing operation and the number of a tool pot that houses a tool specified to be changed. The controller compares the estimated amount of movement of the motor with an actual amount of movement of the tool post driving motor in tool indexing operation, and thereby detects an abnormality in tool indexing operation.
    Type: Application
    Filed: October 7, 2015
    Publication date: April 14, 2016
    Inventor: Yoshitsugu OGAWA
  • Publication number: 20150115514
    Abstract: A rotary table is rotated by a machining load. A drive motor tries to return the rotary table to a positioned target position, and increases output torque. When the output torque reaches upper limit torque Tmax or when output torque which is equal to or greater than permissible torque Tp continues for predetermined time ?T, a target position which is sent to a drive motor is changed, thereby promoting reduction in output torque. If the output torque becomes smaller than permissible torque Tp, the target position is changed to bring position deviation of the drive motor equal to 0, and the position deviation is swiftly returned.
    Type: Application
    Filed: October 21, 2014
    Publication date: April 30, 2015
    Inventor: Yoshitsugu OGAWA
  • Publication number: 20130338815
    Abstract: A numerical controller for controlling a machine tool includes a display which displays a virtual control panel composed of an operation key for operating a machine and a lamp indicating operating information of a machine. A plurality of components (buttons and lamps) of each virtual control panel are defined. Each virtual control panel composed of the defined components is associated with a command code to be given by an NC program, and whether to display or hide the virtual control panel is set. When an NC program is executed, and a command code is read, a virtual control panel corresponding to the command code is displayed or hidden.
    Type: Application
    Filed: April 18, 2013
    Publication date: December 19, 2013
    Applicant: FANUC Corporation
    Inventors: Yoshitsugu OGAWA, Susumu MAEKAWA
  • Patent number: 6623577
    Abstract: An electric component compression bonding machine for bonding a plurality of electric components arranged in a row to a substrate is described.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: September 23, 2003
    Assignee: Shibaura Mechatronics Corporation
    Inventors: Yoshitsugu Ogawa, Shinichi Ogimoto, Kunihiro Iwanaga
  • Publication number: 20020117267
    Abstract: An electric component compression bonding machine for bonding a plurality of electric components arranged in a row to a substrate is described.
    Type: Application
    Filed: February 1, 2002
    Publication date: August 29, 2002
    Applicant: SHIBAURA MECHATRONICS CORPORATION
    Inventors: Yoshitsugu Ogawa, Shinichi Ogimoto, Kunihiro Iwanaga